78711669

素因数分解:

$3^4\times {\mathrm{139}}^1\times {\mathrm{6991}}^1$

素因数の和:7142

約数の個数: 20

約数和(自身を含む): 118444480

約数和(自身を除く): 39732811

約数列:

[1, 3, 9, 27, 81, 139, 417, 1251, 3753, 6991, 11259, 20973, 62919, 188757, 566271, 971749, 2915247, 8745741, 26237223, 78711669]

約数ペア:

[(1, 78711669), (3, 26237223), (9, 8745741), (27, 2915247), (81, 971749), (139, 566271), (417, 188757), (1251, 62919), (3753, 20973), (6991, 11259)]